Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . l,i/e-Prexervins Ra/t KAFT-BRIDGE. 1855 RAFTER. and outer india-rubber tubes, which are separately inflatable, ;and surrounded bv a counectiog network, from the lower part ;of which ^ weight uiay be suspended to prevent capsizing. The frame of the life-preserving raft iFig. 4107) is composed iof side-birs A A, held together by screw-threaded rod;* C, hav-ing tig
Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . l,i/e-Prexervins Ra/t KAFT-BRIDGE. 1855 RAFTER. and outer india-rubber tubes, which are separately inflatable, ;and surrounded bv a counectiog network, from the lower part ;of which ^ weight uiay be suspended to prevent capsizing. The frame of the life-preserving raft iFig. 4107) is composed iof side-birs A A, held together by screw-threaded rod;* C, hav-ing tighteniug-uuts 6 at their ends, and by cross-bars D D ;tenoned to tit mortises a a in the side-bars; standards B Bare jgrooved to receive the chimes of barrels E halved into the side- bars, and have holes through which lushing ropes are passed, jThe detached parts are stowed in any convenient part of theship, so that they may be immi-diateiy assembled in case ofemerjjency. Special barrels may be provided, or ordinary water-tight casks may be used. The nift (Fig. 4108) consi!*ts of a large air mattress, having aDumber of wooden slats on its upper side, and covertd with a Fig.
Size: 1317px × 1897px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, booksubjectin, booksubjectmechanicalengineering
